CVE-2026-4823
CVE-2026-4823 is a low-severity vulnerability with a CVSS 3.x base score of 2.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.
Key facts
- Severity: Low (CVSS 3.x base score 2.5)
- CVSS v2: 1.0
- CVSS v4: 1.1
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-16005
- Weakness: CWE-200
- Published:
- Last modified:
Description
A flaw has been found in Enter Software Iperius Backup up to 8.7.3. Affected by this vulnerability is an unknown functionality of the component NTLM2 Handler. Executing a manipulation can lead to information disclosure. The attack is restricted to local execution. Attacks of this nature are highly complex. The exploitation appears to be difficult. The exploit has been published and may be used. Upgrading to version 8.7.4 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Frequently asked questions
- What is CVE-2026-4823?
- A flaw has been found in Enter Software Iperius Backup up to 8.7.3. Affected by this vulnerability is an unknown functionality of the component NTLM2 Handler. Executing a manipulation can lead to information disclosure. The attack is restricted to local execution. Attacks of this nature are highly complex. The exploitation appears to be difficult. The exploit has been published and may be used. Upgrading to version 8.7.4 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
- How severe is CVE-2026-4823?
- CVE-2026-4823 has a CVSS 3.x base score of 2.5, rated low severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2026-4823 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-4823?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-4823 have an EU (EUVD) identifier?
- Yes. CVE-2026-4823 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16005.
- When was CVE-2026-4823 published?
- CVE-2026-4823 was published on 2026-03-25 and last updated on 2026-06-17.
References
- https://github.com/0truust/iperius-backup-security-advisories/blob/main/advisories/ntlm-relay-credential-exposure.md
- https://vuldb.com/?ctiid.353123
- https://vuldb.com/?id.353123
- https://vuldb.com/?submit.774218
- https://www.iperiusbackup.com/download-software-backup.aspx
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